On the other hand,there are some drawbacks,too.Firstly,the most important disadvantage is the unknown effects on health in case of over-use.Scientists found that mobile phones can cause brain cancer.if you talk for so many hours,you are going to have headacheand ear problems.Secondly,the mob...
A key feature of China’s opium epidemic is that it was state-sponsored.In the early 19th century, British merchants wanted to sell Indian-grown opium in China, while Chinese officials attempted to crack down on this illegal trade. Rather than aiming to constrain the opium trade, however, th...
a civil war. The Opium War is another good example. The war, together with a series of wars ensuing it, brings the feudal system to an end and marks the beginning of China’s modern history. Such examples are too numerous to enumerate. In short, war provides much—if not most—of ...